Russian:
g is д in hand-written russian (ч and r are the same when handwritten, can these pairs be related?)

Runic:
ᚦ is between g and d [þ the ð can be seen as z, which is indeed between ж & d]
Hungarian:
Gy     gy     gyé     /ɟ/ⓘ         (not used in English; soft form of /d/. Mostly similar to during, as pronounced in Received Pronunciation)     denoting /ɟ/ by ⟨gy⟩ is a remnant of (probably) Italian scribes who tried to render the Hungarian sound. <dy> would be a more consistent notation in scope of ⟨ty⟩, ⟨ny⟩, ⟨ly⟩; (see there), as the ⟨y⟩ part of digraphs show palatalisation in the Hungarian writing system.